Display screen or portion thereof with graphical user



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface showing my new design;

FIG. 2 is another front view, but showing the design in a different environment; and,

FIG. 3 is another front view, but showing the design in a different environment.

The broken lines shown herein are included for the purpose of illustrating portions of display screens, portions of graphical user interfaces, and the surrounding environment, and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 